1. 天然产物
  2. 疾病研究领域 植物 糖类 微生物
  3. 癌症 其他科 多糖
  4. Laminaran

Laminaran  (Synonyms: 昆布多糖)

目录号: HY-119109 纯度: ≥98.0%
COA 产品使用指南

Laminaran 是一种 β-1-3-葡聚糖,是 Eisenia Bicyclis 中的 Dectin-1 的典型配体,具有免疫调节,辐射防护作用以及抗癌活性。 Laminaran 由具有 β (1→6) 分支的 β (1→3)-葡聚糖组成,可以被葡糖酶诸如 (EC 3.2.1.6) 之类的酶催化,该酶会破坏 β (1→3) 键。 Laminaran 是一种有前途的免疫刺激分子,用于癌症免疫的研究。

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Laminaran Chemical Structure

Laminaran Chemical Structure

CAS No. : 9008-22-4

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Customer Review

  • 生物活性

  • 纯度 & 产品资料

  • 参考文献

生物活性

Laminaran is an β-1-3-glucan and a typical ligand for Dectin-1 from Eisenia Bicyclis, has potent immunomodulating, radioprotective, and anticancer activities[1]. Laminaran is made up of β (1→3)-glucan with β (1→6)-branches and can be catalyzed by enzymes such as laminarinase (EC 3.2.1.6) that breaks the β (1→3) bonds[2]. Laminaran is a promising immune stimulatory molecule for use in cancer immunotherapy[3].

体外研究
(In Vitro)

Laminaran (100-800 µg/mL; 24 hours) is not cytotoxic against normal epidermal cells JB6 Cl41 and human melanoma cells SK-MEL-28, the percentage of inhibition of living cells number is less than 15 % at concentrations range up to 800 µg/mL after 24 h of treatment[1].
Laminaran (200 µg/mL; 24-72 hours)does not cause any growth inhibition of SK-MEL-28 cells after 24 and 48 h of treatment, but decreases cells proliferation by 36 % after 72 h of treatment[1].
Laminaran (25-50 µg/mL; 24 hours) at low concentration does not influence the phosphorylation of c-Raf (Ser259), ERK1/2 (Tyr202/Tyr204), and MEK1/2 (Ser 221) kinases as well as total expression level of investigated proteins. But decreases p-MEK, p-ERK1/2 at 50 µg/mL[1].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Cell Viability Assay[1]

Cell Line: JB6 Cl41 and SK-MEL-28 cells
Concentration: 100, 200, 400, and 800 µg/mL
Incubation Time: 24 hours
Result: Showed no cytotoxic against normal epidermal cells JB6 Cl41 and human melanoma cells SK-MEL-28.

Cell Proliferation Assay[1]

Cell Line: SK-MEL-28 cells
Concentration: 200 µg/mL
Incubation Time: 24 hours
Result: Decreased cell proliferation at 72 hours.

Western Blot Analysis[1]

Cell Line: SK-MEL-28 cells
Concentration: 25 µg/mL; 50 µg/mL
Incubation Time: 24 hours
Result: Inhibited phosphorylation of c-Raf, MEK1/2, and ERK1/2 kinases.
体内研究
(In Vivo)

Laminaran (intravenous injection; 12.5, 25, and 50 mg/kg; 21 days) and OVA (50 μg) combination significanly decreases the tumor masses when it compares with the PBS-, OVA-, and laminarin-treated mice[3].

MCE has not independently confirmed the accuracy of these methods. They are for reference only.

Animal Model: C57BL/6 mice injected s.c. with B16-OVA cells[3]
Dosage: 12.5, 25, and 50 mg/kg; 21 days
Administration: Intravenous injection
Result: Prevented B16-OVA tumor growth by inducing Ag-specific immune responses.
Formula

C18H32O16

CAS 号
性状

固体

颜色

White to off-white

中文名称

昆布多糖;褐藻淀粉

结构分类
初始来源

Eisenia Bicyclis

运输条件

Room temperature in continental US; may vary elsewhere.

储存方式
Powder -20°C 3 years
4°C 2 years
In solvent -80°C 6 months
-20°C 1 month
溶解性数据
细胞实验: 

H2O 中的溶解度 : 16.67 mg/mL (超声助溶)

  • 摩尔计算器

  • 稀释计算器

Mass (g) = Concentration (mol/L) × Volume (L) × Molecular Weight (g/mol)

质量
=
浓度
×
体积
×
分子量 *

Concentration (start) × Volume (start) = Concentration (final) × Volume (final)

This equation is commonly abbreviated as: C1V1 = C2V2

浓度 (start)

C1

×
体积 (start)

V1

=
浓度 (final)

C2

×
体积 (final)

V2

动物实验:

以下溶解方案,请直接配制工作液。建议现用现配,在短期内尽快用完。 以下溶剂前显示的百分比是指该溶剂在您配制终溶液中的体积占比; 如在配制过程中出现沉淀、析出现象,可以通过加热和/或超声的方式助溶。

  • 方案 一

    请依序添加每种溶剂: PBS

    Solubility: 33.33 mg/mL; 澄清溶液; 超声助溶

动物溶解方案计算器
请输入动物实验的基本信息:

给药剂量

mg/kg

动物的平均体重

g

每只动物的给药体积

μL

动物数量

由于实验过程有损耗,建议您多配一只动物的量
计算结果
工作液所需浓度 : mg/mL
该产品水溶性佳,请具体参考实测 水 / PBS / Saline 中的溶解度数据。
您所需的储备液浓度超过该产品的实测溶解度,如有需要,请与 MCE 中国技术支持联系。
纯度 & 产品资料

纯度: ≥98.0%

参考文献
Help & FAQs
  • Do most proteins show cross-species activity?

    Species cross-reactivity must be investigated individually for each product. Many human cytokines will produce a nice response in mouse cell lines, and many mouse proteins will show activity on human cells. Other proteins may have a lower specific activity when used in the opposite species.

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产品名称:
Laminaran
目录号:
HY-119109
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